Researchers are exploring ways that the traces of data that people leave on different websites and devices could be combined and used to track them.

研究人员致力于探求如何追踪人们在各个网站留下的信息，并且制造仪器辅助追踪。

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What track does the train leave from?

这班火车从哪条轨道出发？

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How do we keep track of the ever-evolving recommendations for what to put on, and leave off, the plate?

关于平时要吃什么、不吃什么，我们怎样去留意那些花样翻新的饮食建议呢？

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We leave you with the title track from Arcade Fire's new album, "The Suburbs."

VOA: special.2010.08.13

We leave you with the title track from his latest album "Psychedelic Blues."

VOA: special.2010.08.02

We leave you with the title track from that album,"Let it Be."

VOA: special.2010.07.30

In the meantime, the railway trust is also trying to negotiate with Denbighshire Council to ensure they do not disturb the track bed needed for the train to leave Llangollen for Ruabon.

BBC: NEWS | UK | Wales | North East Wales | Housing 'threatens' rail growth

Some illegal immigrants go underground to evade deportation, but the Immigration Service has no idea how many, since it does not keep track of how many leave the country voluntarily.

ECONOMIST: Deportation

If nothing is done, might Italy end up on the same track as Argentina, forcing it to leave the euro, devalue and perhaps default?

ECONOMIST: The search for scapegoats | The